StemCell Therapy

NantKwest, Inc. (Nasdaq: NK), a clinical-stage, natural killer cell-based therapeutics company, today announced the publication of two peer-reviewed manuscripts in the Journal of Immunotherapy of Cancer. These invitro and in-vivo studies, conducted in collaboration with the National Cancer Institute pursuant to a Cooperative Research and Development Agreement, support the mechanism and functionality of NantKwests clinical-stage engineered natural killer (NK) cell lines, haNK and first-in-class PD-L1 t-haNKTM, as effecting anti-tumor activity in treatment-refractory cancer types even in the hypoxemic setting of the solid tumor microenvironment.

"These published studies provide important insight and validation for the mechanism and activity of our novel first-in-class engineered NK cells for use in notoriously difficult solid tumor types," said Patrick Soon-Shiong, M.D., Chairman and Chief Executive Officer of NantKwest. "NK cells have the potential to kill tumor cells; however, the hypoxic nature of the suppressive tumor environment has been shown to curb primary NK cell function. These published data indicate that our engineered haNK cells remain active in hypoxic conditions, which may be an important new mechanism of its anti-tumor activity. In addition, our NK cells appear to be resistant even to acute hypoxia and are capable of maintaining tumor killing activity in conditions comparable to a suppressive tumor microenvironment."

Dr. Soon-Shiong continued, "In addition, we are encouraged to observe anti-tumor activity in every cancer cell line tested by the investigators at NCI. The positive data in the in-vivo models of solid tumors with PD-L1 t-haNK, our engineered haNK cell line that also expresses a PD-L1 CAR, provides a novel approach to target tumors expressing PD-L1. This highly targeted NK cell therapy has the potential to address the evolution of tumors as they become resistant to chemotherapy, antibody therapy and, ultimately, checkpoint immunotherapy. We have hypothesized that cancer undergoes a quantum change and adapts to the therapy administered, resulting in the selection of resistant, cancer stem-like cells. It is at this stage of evolution where intractable tumors such as in patients with metastatic pancreatic cancer and triple negative breast cancer, are deemed incurable. It is our belief that these cancer "stem" cells, which do not divide and hence are untouchable by chemotherapy, become resistant and render checkpoint therapy futile by not expressing t-cell receptor ligands. In the face of this immunosuppressive milieu, our PD-L1 t-haNK cells can act to kill these otherwise highly resistant cancer cells, as demonstrated by these two important reports by our colleagues at the NCI. Our clinical results in the first patient with advanced metastatic pancreatic cancer to have received PD-L1 t-haNK demonstrated a durable complete response."

Study highlights from the publication titled "Overcoming hypoxia-induced functional suppression of NK cells" include:

Study highlights from the article titled "PD-L1-targeting high-affinity NK cells (PD-L1 t-haNK) induce direct antitumor effects and target suppressive MDSC populations" include:

The articles may be found on the Publications section of the NantKwest corporate website here: https://nantkwest.com/peer-reviewed-publications/

About NantKwestNantKwest (NASDAQ: NK) is an innovative, clinical-stage immunotherapy company focused on harnessing the power of the innate immune system to treat cancer and virally-induced infectious diseases. NantKwest is the leading producer of clinical dose forms of off-the-shelf natural killer (NK) cell therapies. The activated NK cell platform is designed to destroy cancer and virally-infected cells. The safety of these optimized activated NK cellsas well as their activity against a broad range of cancershas been tested in Phase I clinical trials in Canada and Europe, as well as in multiple Phase I and II clinical trials in the United States. By leveraging an integrated and extensive genomics and transcriptomics discovery and development engine, together with a pipeline of multiple, clinical-stage, immuno-oncology programs, NantKwests goal is to transform medicine by delivering off-the-shelf, novel NK cell-based therapies to routine clinical care. NantKwest is a member of the NantWorks ecosystem of companies. For more information, please visit http://www.nantkwest.com.

Story continues

haNK is a registered trademark of NantKwest, Inc.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements concerning or implying that NantKwest will be successful in improving the treatment of cancer or other critical illnesses, including COVID-19. Risks and uncertainties related to these endeavors include, but are not limited to, obtaining FDA approval of NantKwests NK cells as well as other therapeutics and manufacturing challenges.

Forward-looking statements are based on managements current expectations and are subject to various risks and uncertainties that could cause actual results to differ materially and adversely from those expressed or implied by such forward-looking statements. Accordingly, these forward-looking statements do not constitute guarantees of future performance, and you are cautioned not to place undue reliance on these forward-looking statements.

These and other risks regarding NantKwests business are described in detail in its Securities and Exchange Commission filings, including in NantKwests Quarterly Report on Form 10-Q for the quarter ended March 31, 2020. These forward-looking statements speak only as of the date hereof, and we disclaim any obligation to update these statements except as may be required by law.

View source version on businesswire.com: https://www.businesswire.com/news/home/20200610005251/en/

Contacts

Jen Hodson NANT Jen@nant.com

See the original post:
NantKwest Announces Studies in Collaboration with the National Cancer Institute Demonstrating Enhanced Killing Activity of First-in-Class PD-L1 t-haNK...

This entry was posted on June 14, 2020 at 7:52 am and is filed under Stem Cell Negative. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed. |